Just to add to the water problem in the rear ends of the Farmall tractors. All H & M's and up to early 4 & 560's had a breather hole in the shift lever shield. It consists of a groove in the shield where shift lever goes through. It is covered with a flat washer held down with a spring. If it is not plugged up considerable water can find it's way down through when out in the weather. So, that is the so called hole to the outside.
IH later eleminated that groove and added a o ring to the top of the shield. Then they drilled a hole in the casting the shield "shielded" but the shield did not plug hole. That was their new improved breather. They had a package and I installed many during final drive repairs on those tractors.
The water can also go down through the platform bolts from water pooling in the recess. I put a rtv gasket sealer on the upper parts of the bolt when installing them.
Condensation can add considerable amounts of water. Normally when you see frost on the outside of the tractor like when it is sitting in a unheated shed, the same amount of frost is inside.
Years ago, some farmers would park their tractors in the cattle barn as it was considerably warmer than outside. Those tractors would rust electrical components etc and condense water something terrible even when used for chores every day.
IH later eleminated that groove and added a o ring to the top of the shield. Then they drilled a hole in the casting the shield "shielded" but the shield did not plug hole. That was their new improved breather. They had a package and I installed many during final drive repairs on those tractors.
The water can also go down through the platform bolts from water pooling in the recess. I put a rtv gasket sealer on the upper parts of the bolt when installing them.
Condensation can add considerable amounts of water. Normally when you see frost on the outside of the tractor like when it is sitting in a unheated shed, the same amount of frost is inside.
Years ago, some farmers would park their tractors in the cattle barn as it was considerably warmer than outside. Those tractors would rust electrical components etc and condense water something terrible even when used for chores every day.